Fixed ldap and ra plugin 'name'e' problem

ipaserver/plugins/b_ldap.py

@@ -50,6 +50,7 @@ class ldap(CrudBackend):
 
     def __init__(self):
         self.dn = _ldap.dn
+        super(ldap, self).__init__()
 
     def make_user_dn(self, uid):
         """

ipaserver/plugins/b_ra.py

@@ -67,6 +67,7 @@ class ra(Backend):
             self.__create_nss_db()
             self.__import_ca_chain()
             self.__request_ipa_certificate(self.__generate_ipa_request())
+        super(ra, self).__init__()
 
 
     def check_request_status(self, request_id=None):